This is a formative course that provides beginner students with a better understanding of legal concepts through their historical analysis within the framework of various and successive political models. Although they have their origin in the Western legal tradition, these concepts were reformulated by the Enlightenment and the Liberal Revolution and have acquired today (following the crisis of the liberal system and the triumph of the constitutional and democratic state) a wholly new meaning. Only by becoming aware of this historical density can the student understand and value the instruments that he/she will employ in a globalized and unstable legal order. Throughout this course, the student will learn about the evolution of the legal system, its institutions, and legal-political doctrine. This will allow him/her to discover the social value of law, acquire a critical sense of its evolution and develop his/her ability to synthesize information. In short, it will provide the student with interpretive elements that will allow him/her to take the lead in his/her professional future, and not be a mere data collector.